commit 1eb46908b35dfbac0ec1848d4b1e39667e0187e9 upstream allmodconfig+CONFIG_INTEL_KVM=n results in the following build error. ERROR: "l1tf_vmx_mitigation" [arch/x86/kvm/kvm.ko] undefined! Fixes: 5b76a3cff011 ("KVM: VMX: Tell the nested hypervisor to skip L1D flush on vmentry") Reported-by: Meelis Roos <mroos@xxxxxxxx> Cc: Meelis Roos <mroos@xxxxxxxx> Cc: Paolo Bonzini <pbonzini@xxxxxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx> Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx> --- arch/x86/kernel/cpu/bugs.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c index 5229eaf73828..ac67a76550bd 100644 --- a/arch/x86/kernel/cpu/bugs.c +++ b/arch/x86/kernel/cpu/bugs.c @@ -647,10 +647,9 @@ void x86_spec_ctrl_setup_ap(void) enum l1tf_mitigations l1tf_mitigation __ro_after_init = L1TF_MITIGATION_FLUSH; #if IS_ENABLED(CONFIG_KVM_INTEL) EXPORT_SYMBOL_GPL(l1tf_mitigation); - +#endif enum vmx_l1d_flush_state l1tf_vmx_mitigation = VMENTER_L1D_FLUSH_AUTO; EXPORT_SYMBOL_GPL(l1tf_vmx_mitigation); -#endif static void __init l1tf_select_mitigation(void) { -- 2.7.4